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Topic Review (Newest First)

01-28-2004 10:28 PM

78 chevy truck

so are thos pistons the same hight then

01-28-2004 06:47 PM

NorthStar

Those pistons will have about -5 cc and 1.560 height.
Dont always believe everything they claim in ads especially compression ratios you have all the dimensions of your engine combination plug those into the compression ratio formula.

Very Important: You said or claim that your block has been resurfaced you have to measure how far down in the hole your existing pistons are at TDC. This easy to do no fancy gauges are needed. Find a flat piece of metal like a ruler or something and some feeler gauges, rotate till piston is at top of stroke and start testing which feeler gauge will fit. Measure in line with pin that way piston rocking in bore will have very little effect on your measurement.
If you dont get this done its just a gamble if youll have a problem with piston protrusion.

01-28-2004 05:39 PM

78 chevy truck

what if the block has been decked? what cc are they

01-28-2004 05:06 PM

BoomerADF

Quote:

Originally posted by 78 chevy truck ya what cmp ration will i have with 76cc heads? will these pistons work? and what is the dome -cc or +cc

i called summit about my problem and they told my to get this kit fem mhp 126 60 22 is this a good kit. he said he does not know if this will work with the deck hight. what do you guys think

what are the cc that are lost in 4 relef vavel on the pistons above do you think the are going to work?
old pistons h423np
new fem mhp 126 6022 do this pistons have a dome? are they the same hight as the other ones? the guy could not tell me